Dwarves

The fifth being created the dwarfs who went on living under the earth to unearth the treasures hidden there, able to control both earth and fire for their trades to prosper.

Traditionally dawrves are the only race who can bend two elements by default – fire and earth. An affinity which makes them the perfect choice to become smiths. Hence the reason that most of the master smiths are either dwarfs or have dwarven blood in their heritage.